HRE develops world's first 3D printed titanium wheel - HRE3D+

You have to give HRE props here for doing something different as their new designs seemed to stagnate. The end result here is not the most aesthetically pleasing wheel as it looks like something out of a Lego Technic kit but it certainly is different and points toward future design methods.

HRE states:

The "HRE3D+" is the result of an intensive design collaboration between HRE Wheels and GE Additive. The two companies worked together to push the boundaries of what is possible to create the first 3D-printed titanium automotive wheel.

Basically this is a test bed application designed to get attention and mission accomplished.

Here is how this design process stands out:

With a traditional aluminum Monoblok wheel, 80% of material is removed from a 100-pound forged block of aluminum to create the final product. With additive manufacturing, only 5% of the material is removed and recycled, making the process far more efficient. Titanium also has a much higher specific strength than aluminum and is corrosion resistant, allowing it to be extremely lightweight and to be shown in its raw finish.

There was an intensive design collaboration between the Vista, California based team at HRE and the
GE AddWorks team out of Ohio. Using design queues from two existing models of HRE wheels, the
two companies worked together to create a stunning example of what is possible with additive
manufacturing. The wheel was produced on two Arcam EBM machines - Q20 and a Q10 in five
separate sections, then combined using a custom center section and bolted to a carbon fiber rim using
titanium fasteners.

This is not a production wheel but a demo of the 3D Printing titanium wheel process that can be applied in the future.